CN213777267U - Bottleneck seal structure and high-pressure composite container - Google Patents
Bottleneck seal structure and high-pressure composite container Download PDFInfo
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- CN213777267U CN213777267U CN202022977637.XU CN202022977637U CN213777267U CN 213777267 U CN213777267 U CN 213777267U CN 202022977637 U CN202022977637 U CN 202022977637U CN 213777267 U CN213777267 U CN 213777267U
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Abstract
The utility model discloses a bottleneck sealing structure and a high-pressure composite container, wherein the sealing structure comprises a metal end head, a sealing support, an auxiliary sealing gasket and a sealing glue layer; wherein, the metal end head is pressed on the upper end surface of the bottle mouth; the sealing support is tightly pressed on the lower end surface and the inner side surface of the bottle mouth and is fixedly connected with the metal end; the auxiliary sealing gasket is arranged between the metal end and the bottle mouth and is opposite to the parting line on the bottle mouth; the sealant layer is arranged between the auxiliary sealing gasket and the bottle mouth. The utility model provides a bottleneck seal structure and high-pressure composite container, through the cooperation of sealing glue layer and supplementary sealed pad, can form two-layer seal structure in the position department of the parting line of bottleneck to the leakproofness and the gas-resistant medium permeability of container have effectively been promoted.
Description
Technical Field
The utility model relates to a high pressure composite container especially relates to a bottleneck seal structure and high pressure composite container.
Background
For a high-pressure composite container, because of the need of a plastic shell molding process of a plastic liner, a mold parting line characteristic exists at a sealing part, or due to unevenness or large roughness of a sealing surface caused by other molding problems, a container storage medium, such as hydrogen and other small molecule gases, is easy to leak from the sealing part with the uneven parting line under the high-pressure condition, and even a sealing element is extruded from the original sealing position at the uneven parting line or other molding defects by high pressure, so that sealing failure is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bottleneck seal structure and high-pressure composite container to solve the problem among the above-mentioned prior art, realize the leakproofness and the gas-fast medium permeability of efficient container.
The utility model provides a bottleneck seal structure for with the sealed cooperation of bottleneck of high-pressure composite container, wherein, include:
the metal end head is tightly pressed on the upper end face of the bottle mouth;
the sealing support is tightly pressed on the lower end face and the inner side face of the bottle mouth and is fixedly connected with the metal end;
the auxiliary sealing gasket is arranged between the metal end and the bottle mouth and is opposite to a parting line on the bottle mouth;
and the sealing adhesive layer is arranged between the auxiliary sealing gasket and the bottle mouth.
The bottle mouth sealing structure as described above, preferably, the sealing support includes a first supporting portion and a second supporting portion, the first supporting portion is perpendicular to the second supporting portion, the first supporting portion is in sealing abutment with the lower end face of the bottle mouth, the second supporting portion is in sealing abutment with the inner side face of the bottle mouth, and the second supporting portion is fixedly connected to the metal end.
The bottle mouth sealing structure as described above, preferably, the second supporting portion is provided with an external thread, and the second supporting portion is fixedly connected to the metal end through the external thread.
The bottle mouth sealing structure as described above, wherein, preferably, further comprises a sealing member, the sealing member is disposed between the metal end and the auxiliary seal gasket.
The bottle mouth sealing structure as described above, preferably, the metal end is provided with a sealing groove, the sealing element is fixedly disposed in the sealing groove, and a diameter of a tangent plane of the sealing element is greater than a depth of the sealing groove.
In the above-described bottle mouth sealing structure, the material of the sealing member is preferably FKM, EPDM, FVMQ, PTFE or silicone resin.
In the above bottle mouth sealing structure, preferably, the auxiliary sealing gasket is made of plastic or metal.
The utility model also provides a high-pressure composite container, wherein, include the utility model provides a bottleneck seal structure, high-pressure composite container still includes:
the bottle comprises a plastic shell, wherein a bottle opening is formed in the plastic shell;
a bottleneck valve in sealing engagement with the metal end;
and the fiber winding reinforcing layer is fixedly wound on the plastic shell and the metal end.
The high-pressure composite container as described above, wherein preferably, the bottle mouth is provided with a clamping groove, the bottom of the clamping groove is provided with a convex or concave parting line, the sealant layer is disposed on the bottom surface and the side wall surface of the clamping groove, and the auxiliary sealing gasket is disposed in the clamping groove.
The utility model provides a bottleneck seal structure and high-pressure composite container, through the cooperation of sealing glue layer and supplementary sealed pad, can form two-layer seal structure in the position department of the parting line of bottleneck to the leakproofness and the gas-resistant medium permeability of container have effectively been promoted.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a bottle mouth sealing structure provided by an embodiment of the present invention;
FIG. 2 is an enlarged view at A of FIG. 1;
fig. 3 is a state diagram of the bottle mouth sealing structure in the high-pressure composite container according to the embodiment of the present invention;
fig. 4 is a partial enlarged view of the bottle mouth sealing structure provided by the embodiment of the present invention at the convex parting line;
fig. 5 is a partial enlarged view of the internal concave parting line of the bottle mouth sealing structure provided by the embodiment of the present invention.
Description of reference numerals:
100-Metal end 110-seal groove
200-seal support 210-first support part
220-second support 300-auxiliary gasket
400-sealant layer 500-seal
600-Plastic casing 700-bottle mouth
710-parting line 720-parting line
800-bottleneck valve 900-fiber winding reinforcement layer
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1 to 5, an embodiment of the present invention provides a bottle mouth sealing structure, which includes a metal end 100, a sealing support 200, an auxiliary sealing gasket 300, and a sealing adhesive layer 400; wherein, the metal end 100 is pressed on the upper end surface of the bottle mouth 700; the sealing support 200 is tightly pressed on the lower end surface and the inner side surface of the bottle mouth 700, and the sealing support 200 is fixedly connected with the metal end 100; the auxiliary sealing gasket 300 is arranged between the metal end 100 and the bottle mouth 700, and the auxiliary sealing gasket 300 is opposite to the parting line on the bottle mouth 700; the sealant layer 400 is disposed between the supplementary seal 300 and the bottle mouth 700.
In the molding process, as shown in fig. 4 and 5, parting lines 710 and 720 or other molding defects may exist at the bottle mouth 700 on the plastic housing, for this reason, the auxiliary sealing gasket 300 in this embodiment may be pressed by the metal end 100 at the position of the parting line, and the auxiliary sealing gasket 300 may be precisely machined to form a sealing surface with good roughness quality, so that a good sealing interface is formed between the sealing surface and the metal end 100 and the plastic housing, and the sealing effect is improved. Meanwhile, the sealant layer 400 is liquid in the forming process, and the liquid sealant can be filled into the concave parting line 720 or completely wrapped on the convex parting line 710, and forms a glue layer with a smooth surface after shaping, as shown in fig. 4 and 5, so that the leakage or permeation of high-pressure gas medium molecules from the parting line can be prevented, and the overall sealing performance of the container is ensured.
Further, as shown in fig. 2, the sealing support 200 includes a first supporting portion 210 and a second supporting portion 220, the first supporting portion 210 is perpendicular to the second supporting portion 220 to form an "L" shaped structure, the first supporting portion 210 is in sealing contact with the lower end surface of the bottle mouth 700, the second supporting portion 220 is in sealing contact with the inner side surface of the bottle mouth 700, and the second supporting portion 220 is fixedly connected to the metal end head 100.
The first supporting portion 210 extends into the container and supports one side face of the bottle mouth 700 facing the inside of the container, the second supporting portion 220 extends out of the inside of the container and abuts against the inner side face of the bottle mouth 700, when the metal end head 100 is pressed on the upper end face of the bottle mouth 700, the mounting groove in the metal end head 100 can be fixedly connected with the second supporting portion 220, so that the metal end head 100 and the sealing support 200 can respectively press the two side faces of the bottle mouth 700, the structural strength and the pressure resistance of the bottle mouth 700 are enhanced, and meanwhile, the second supporting portion 220 can prevent the bottle mouth 700 from being compressed under the action of pressure and temperature.
Specifically, in order to facilitate the connection of the metal end 100 and the sealing support 200, an external thread may be disposed on the second supporting portion 220, and the second supporting portion 220 is fixedly connected to the metal end 100 through the external thread.
Further, as shown in fig. 1 and 2, the bottleneck sealing structure further includes a sealing member disposed between the metal tip 100 and the supplementary packing 300 to improve a sealing effect between the metal tip 100 and the plastic case.
Further, as shown in fig. 2, in order to facilitate the fixing of the sealing element and ensure the stability of the fixing position of the sealing element, a sealing groove 110 may be provided on the metal end 100, the sealing element is fixedly disposed in the sealing groove 110, and the diameter of the tangent plane of the sealing element is greater than the depth of the sealing groove 110, so that when the metal end 100 is pressed against the plastic shell, the sealing element may be compressed by itself to perform a sealing function.
The material of the sealing element can be FKM, EPDM, FVMQ, PTFE or silicone.
It should be noted that the material of the auxiliary gasket 300 may be plastic or metal, and the auxiliary gasket 300 may have a sealing surface with good roughness and quality after being precisely machined, so as to ensure the sealing effect at the parting line.
Further, as shown in fig. 3, an embodiment of the present invention further provides a high-pressure composite container, which includes the bottleneck sealing structure provided by any embodiment of the present invention, and the high-pressure composite container further includes a plastic shell, a bottleneck valve 800 and a fiber winding reinforcing layer 900; wherein, a bottle mouth 700 is arranged on the plastic shell; the bottleneck valve 800 is in sealing fit with the metal end 100; the filament wound reinforcement layer 900 is fixedly wound around the plastic shell and metal end 100. Wherein, the bottle mouth 700 and the plastic shell are integrally molded by injection molding or rotational molding.
The metal end head 100 in the bottle mouth sealing structure is tightly pressed on the upper end face of a bottle mouth 700, the sealing support 200 is tightly pressed on the lower end face and the inner side face of the bottle mouth 700, and the sealing support 200 is fixedly connected with the metal end head 100; the auxiliary sealing gasket 300 is arranged between the metal end 100 and the bottle mouth 700, the auxiliary sealing gasket 300 is opposite to the parting line on the bottle mouth 700, and the sealant layer 400 is arranged between the auxiliary sealing gasket 300 and the bottle mouth 700.
In the molding process, there may be parting lines or other molding defects at the bottle mouth 700 on the plastic housing, for this reason, the auxiliary sealing gasket 300 in this embodiment may be pressed by the metal end 100 at the parting line, and the auxiliary sealing gasket 300 may precisely machine a sealing surface with good roughness quality, so that a good sealing interface is formed between the sealing surface and the metal end 100 and the plastic housing, and the sealing effect is improved.
Meanwhile, the sealant layer 400 is liquid in the forming process, and the liquid sealant can be filled into the concave parting line 720 or completely wrapped on the convex parting line 710, and forms a glue layer with a smooth surface after shaping, as shown in fig. 4 and 5, so that the leakage or permeation of high-pressure gas medium molecules from the parting line can be prevented, and the overall sealing performance of the container is ensured.
Further, as shown in fig. 2 to 5, a neck is provided on the bottle mouth 700, convex or concave parting lines 710, 720 are provided at the bottom of the neck, the sealant layer 400 is provided on the bottom surface and the side wall surface of the neck, and the auxiliary sealing gasket 300 is provided in the neck.
The clamping groove is integrally formed in the forming process of the bottle opening 700, the parting line is formed at the bottom of the clamping groove, liquid sealant can be injected into the clamping groove after the clamping groove is formed, the liquid sealant can wrap the convex parting line or be filled into the concave parting line, and can even wrap other forming defects, so that the parting line or other forming defects can be compensated; then can install the secondary seal pad 300 to the draw-in groove in to through the extrusion of metal end 100, the secondary seal pad 300 can be crowded like on the inside wall to the draw-in groove with liquid sealed glue, after sealed glue design, can form the glue film at the lateral wall and the bottom surface of draw-in groove, thereby guaranteed the inseparable cooperation between secondary seal pad 300 and draw-in groove, can form two-layer seal structure in the draw-in groove through sealant layer 400 and secondary seal pad 300 from this, effectively promoted sealed effect.
The plastic shell may be made of one or a combination of two or more of PA, PE, PPA, polyester, PP, POM, and EVOH, and the plastic shell may have multiple layers, wherein the multiple layers include a gas barrier layer to prevent permeation of small molecules such as hydrogen molecules.
The embodiment of the utility model provides a bottleneck seal structure and high-pressure composite container, through the cooperation of sealing glue layer and supplementary sealed pad, can form two-layer seal structure in the position department of the parting line of bottleneck to the leakproofness and the gas-resistant medium permeability of container have effectively been promoted.
The structure, features and effects of the present invention have been described in detail above according to the embodiment shown in the drawings, and the above description is only the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings, and all changes made according to the idea of the present invention or equivalent embodiments modified to the same changes should be considered within the protection scope of the present invention when not exceeding the spirit covered by the description and drawings.
Claims (9)
1. A kind of bottleneck hermetically-sealed construction, is used for cooperating with bottleneck seal of the high-pressure composite container, characterized by, comprising:
the metal end head is tightly pressed on the upper end face of the bottle mouth;
the sealing support is tightly pressed on the lower end face and the inner side face of the bottle mouth and is fixedly connected with the metal end;
the auxiliary sealing gasket is arranged between the metal end and the bottle mouth and is opposite to a parting line on the bottle mouth;
and the sealing adhesive layer is arranged between the auxiliary sealing gasket and the bottle mouth.
2. The spout sealing structure of claim 1, wherein the sealing support comprises a first support portion and a second support portion, the first support portion is perpendicular to the second support portion, the first support portion is in sealing abutment with the lower end face of the spout, the second support portion is in sealing abutment with the inner side face of the spout, and the second support portion is fixedly connected with the metal end head.
3. The finish sealing structure of claim 2, wherein the second support portion is provided with an external thread, and the second support portion is fixedly connected with the metal end through the external thread.
4. The finish seal arrangement of claim 1, further comprising a seal disposed between the metal end and the secondary gasket.
5. The bottle mouth sealing structure according to claim 4, wherein a sealing groove is formed in the metal end, the sealing element is fixedly arranged in the sealing groove, and the diameter of the tangent plane of the sealing element is larger than the depth of the sealing groove.
6. The spout sealing structure of claim 4, wherein the sealing member is made of FKM, EPDM, FVMQ, PTFE or silicone.
7. The spout sealing structure of any one of claims 1 to 6, wherein the auxiliary gasket is made of plastic or metal.
8. A high-pressure composite container comprising the finish seal structure of any one of claims 1 to 7, the high-pressure composite container further comprising:
the bottle comprises a plastic shell, wherein a bottle opening is formed in the plastic shell;
a bottleneck valve in sealing engagement with the metal end;
and the fiber winding reinforcing layer is fixedly wound on the plastic shell and the metal end.
9. The high-pressure composite container according to claim 8, wherein a neck is provided on the mouth, a convex or concave parting line is provided at the bottom of the neck, the sealant layer is provided on the bottom surface and the side wall surface of the neck, and the auxiliary sealing gasket is provided in the neck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022977637.XU CN213777267U (en) | 2020-12-08 | 2020-12-08 | Bottleneck seal structure and high-pressure composite container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022977637.XU CN213777267U (en) | 2020-12-08 | 2020-12-08 | Bottleneck seal structure and high-pressure composite container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213777267U true CN213777267U (en) | 2021-07-23 |
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ID=76898319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022977637.XU Active CN213777267U (en) | 2020-12-08 | 2020-12-08 | Bottleneck seal structure and high-pressure composite container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213777267U (en) |
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2020
- 2020-12-08 CN CN202022977637.XU patent/CN213777267U/en active Active
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